Una S32760 F55

Alloy 32760 (Phaj) (UNS S32760)

hauj lwm:

Alloy 32760 yog ib tug super ob lub tsev stainless steel nkag rau hauv lub kub ua hauj lwm thiab kua annealed mob. Raws li ib tug super ob lub tsev steel hlau, nws combines cov ntshaw yam ntawm ob leeg austenitic thiab ferritic qib. Lub siab dua chromium, molybdenum thiab nitrogen txheem ua nyob rau hauv ib tug Pitting Kuj Equivalent tooj (PREN) ntawm> 40, muab Pitting thiab crevice xeb kuj superior rau austenitic thiab ob lub tsev stainless steels nyob rau hauv yuav luag tag nrho cov corrosive xov xwm, thiab ib tug tseem ceeb heev Pitting Kub siab tshaj 50 ° C nb.versions ntawm lub PREN mis kuj muaj xws li W raws li ib tug yam ntxwv zoo rau tag nrho Pitting kuj.

Nws muab siab muaj zog tshaj ob austenitic thiab 22% Kr ob lub tsev stainless steels, thiab muaj npe teev nyob rau hauv NACE MR 0175 rau qaub kev pab cuam thiab ASME rau siab txog ntsha daim ntaub ntawv.

Ntsiab Nta:

1.Excellent xeb kuj nyob rau hauv ib tug ntau yam ntawm corrosive tshuaj

2.Pitting Kuj Equivalent tooj (PREN) ntawm> 40

3.Outstanding kuj mus Pitting thiab crevice corrosion nyob rau seawater thiab lwm yam chloride muaj kev kawm

4.Critical Pitting Kub siab tshaj 50 ° C

5.High zog piv rau austenitic thiab 22% Kr ob lub tsev stainless steels

6.Excellent ductility thiab kev cuam tshuam lub zog ntawm ob ambient thiab sub-zero kub

7.High kuj mus puas, yaig thiab cavitation yaig

8.Excellent kuj mus kev nyuaj siab xeb ntes nyob rau hauv chloride muaj kev kawm

9.Listed nyob rau hauv NACE MR 0175 rau qaub kev pab cuam

10.ASME pom zoo rau siab ntsha daim ntawv thov

Daim ntaub ntawv:

1.Process kev lag luam yam nyob rau hauv nitric acid, dioxide, polypropylene & PVC ntau lawm, caustic

2.Equipment tuav organic & fatty acids

3.Marine kev lag luam thiab shipbuilding propellers, shafts, rudders, ncej cov ntsaws ruaj ruaj, twj, bolts, fasteners, li qub, instrumentation

4.Oil thiab tshuaj tankers

5.Oil & Gas kev lag luam twj, li qub, yeeb nkab, cov hlab ntsha, wellhead khoom, subsea khoom

6.Pollution tswj tshuab, kiv cua thiab cov twj, ntub scrubbers, incinerators, flue roj desulphurisation (FGD)

7.Pulp & daim ntawv kev lag luam yam xws li dub cawv rhaub hlab, digester tshuab li qub, teb pub li qub, IDfans, brownstock txuas, precipitators, tshuaj dawb tso Cheebtsam

8.Food Kev lag luam daim ntaub ntawv xws li qab zib pas nrig centrifuges, pob kws thiab zaub ua tsob nroj

9.Agrochemicals ntau lawm xws li chiv (raws li nyob rau hauv ntub phosphoric acid)

10.Sewage kev kho mob, seawater cua txias, Desalination nroj tsuag

Tshuaj Muaj pes tsawg leeg:

 

Kr

ni

mo

co

Nb (+ Ta)

Ti

V

W

cu

C

Mn

N

si

P

S

Fe

al

min 24,00 6,00 3.00         0.50 0.50     0,20          
Max 26,00 8.00 4.00         1.00 1.00 0,025 1.00 0,30 1.00 0,025 0,005 BAL 0.01

Neeg kho tshuab Properties:

   
0.2% pov thawj kev nyuaj siab 550 N / mm2 79,8 ksi
tensile zog 750 N / mm2 108,8 ksi
Elongation, 5.65√S0 25%  
Yuav txo tau ntawm cheeb tsam 45%  
Hardness (Brinell) 270HBN max  
Impact zog (Room Temp) 80J 59 lb.ft
Impact zog (-46oC) 60J av (45J min) 44 lb.ft av (33 lb.ft min)

Sau ntawv:

1.Testing yuav tsum nqa tawm nyob rau hauv raws li ASTM A370 los yog EN ISO 6892-1 (tensile), EN ISO 6506-1 (hardness)

2.Minimum zog hais (kuaj hauv ib chav tsev kub nyob rau hauv ib tug longitudinal kev taw qhia

3.Testing ua rau txhua qhuav ntawm cov ntaub ntawv uas ib tshav kub kev kho mob batch

4.Hardness yuav tsum nyob rau hauv raws li NACE MR 1075 nrog ib tug tshaj plaws HRC ntawm 28

5.ASTM G48A xeb test (ntawm 50degC) Tsis muaj Pitting thiab <3.0g / m2 poob (ASTM specification <4.0g / m2)

6.Ferrite cov ntsiab lus 35-55%

7.Microstructure ntawv pov thawj pub dawb los ntawm grain ciam carbides, sigma, chi thiab laves theem

Physical khoom:

Ceev (Kg / m3) 7810
Sib Nqus permeability (20 ° C) 33
Young cov lus modulus (KN / mm2) 199
Cov Hluav taws xob cov Kuj, 20 ° C (μΩ.m) 0.8
Txhais li cas coefficient ntawm thermal expansion, 20-300 ° C (m / m / OC) 11,1 x 10-6
Cov Thaum tshav kub kub, 20 ° C (J / kg.K) 475
Thermal conductivity, 20 ° C (W / MK) 14,2
Puas toughness, kQ (MPa / m2) 98